I do not have a copy of j7.01 on any of my current machines. I could
probably install one, but:

If you use the debugger and put a stop on the line which throws the
error for you, what is different about the data there? (The error
comes from trying to index a 2 element array with the index value 2).

Thanks,

-- 
Raul

On Sun, Jun 20, 2021 at 10:46 AM 'Michael Day' via Beta
<[email protected]> wrote:
>
> Oh, sorry - it's in my startup script - it does what you'd expect,
> range 1 10 2 would be 1 3 5 7 9 .  I think/hope it's self-contained
> otherwise.
>
> As I said,  jpm ran ok on this earlier today using J7.01,  so I wonder
> what changed
> thtough versions 8 & into 9?
>
> Thanks as ever,
>
> Mike
>
>
> On 20/06/2021 15:12, Raul Miller wrote:
> > I think that load'numeric' is missing from your self contained script.
> >
> >     load'jpm'
> >     start_jpm_ 100000000
> > 1785713
> >     Sava <.1e6
> > |value error: range
> > |   r=.    range s,e,2
> >
> > That said, looking at the error you ran into, I suspect that there
> > must be a (conditional) off-by-one error during the data collection
> > phase.
> >
> > The reason I have this suspicion is that the argument to getdetail1 is
> > a single line which I think represents an invocation of Sava, but the
> > 'rep' variable which is extracted by getdetail2 looks like performance
> > data for the body of Sava.
> >
> > The error itself comes from trying to match up that performance data
> > (variable 'dat' -- 24 rows) with the argument to getdetail1 (variable
> > 'rep' -- 1 row).
> >
> > I would have to play around with a working invocation of jpm to see if
> > I could intuit the intent of this part of the code, maybe do some
> > other studying to see if my suspicion is close to accurate.
> >
> > I hope this helps,
> >
> >
> > --
> > Raul
> >
> > On Sun, Jun 20, 2021 at 8:47 AM 'Michael Day' via Beta
> > <[email protected]> wrote:
> >> A recurrent problem with jpm has reasserted itself.  I thought we'd
> >> chased it away in earlier
> >> beta versions of J903,  but it's been around in earlier releases of J9
> >> and earlier as far as I
> >> recall.  (Checking back-correspondence just now,  since typing the
> >> earlier pair of sentences, I'm
> >> not sure it was cured after all,  but it's still worth observing there
> >> is a problem somewhere in jpm! )
> >> I can vouch for jpm working for a similar test  earlier today analysing
> >> essentially the same function,
> >> Sav,  in J7.01 on my iPad.
> >>
> >> I've corresponded with Henry previously concerning jpm,  thought of
> >> sending privately to him
> >> only,  but there might be other J-users who wish to comment.
> >>
> >> I've been working on Euler Problem 579,  solved by many but not yet by
> >> me.  As often is the
> >> case,  it's easy for small problems,  but the required size is 10^12 !
> >> Please avoid the listing further
> >> below if you wish to solve it without misleading distractions!
> >>
> >> Here's a mini-session,  somewhat contrived for this email:
> >>
> >> JVERSION
> >>
> >> Engine: j903/j64avx2/windows
> >>
> >> Beta-l: commercial/2021-06-17T13:00:27
> >>
> >> Library: 9.03.05
> >>
> >> Qt IDE: 1.9.2/5.12.10(5.12.10)
> >>
> >> Platform: Win 64
> >>
> >> Installer: J903 install
> >>
> >> InstallPath: c:/d/j903-beta
> >>
> >> Contact: www.jsoftware.com
> >>
> >>
> >> clear''     NB. to do with sending in a self-contained mini-script,
> >> further below.
> >>      load'jpm'
> >>      start_jpm_ 100000000
> >> 1785713
> >>      Sava <.1e6
> >> 309358254 1
> >>      showdetail_jpm_ 'Sava'
> >> recorded all lines
> >> used and max record count: 64 1,785,713
> >>
> >> |index error: getdetail1
> >> |   lns=.sort(len#replno)    {~(;repsno)i.stm
> >>
> >> NB. end of session clip
> >>
> >>
> >> NB. and here's a copy of a temporary self-contained (I hope) mini-script
> >>
> >> NB. edited from the working script for the purposes of this enquiry
> >>
> >>
> >> M =: 1000000007
> >>
> >> NB.   look-up table
> >> sum4sq =: (M&|@:+/\) 4 (M&|@^) i.55  NB. cum sum of powers of 4 mod M
> >>
> >> Sava =: 3 : 0
> >> 10000000 Sava y
> >> :
> >> n    =. y                NB. problem size
> >> b    =. (- 2&|) x        NB. block/buffer size must be even
> >> e    =. _1               NB. previous block end
> >> t    =. 0                NB. total mod M
> >> m    =. 0                NB. loop counter (diagnostic only)
> >> NB. define finite arithmetic fns modulo M
> >> by   =. M&|@:*           NB.
> >> bysq =. by~ @ by         NB. square of x * y
> >> add  =. M&|@+
> >> sum  =. M&|@:+/          NB. total
> >> NB. ====================================
> >> g    =. +/"1@:#:         NB. sum of base-2 rep
> >> logn =. 2 ^. n
> >> while. n >: s =. e + 2 do.
> >>      e    =. n <. s + b
> >>      r    =. range s, e, 2             NB. define next block of odd
> >> elements 2i+1, i e. [s, e]%2
> >>      m    =. >: m                      NB. increment loop counter
> >>      rgr2 =. (bysq g) r    NB. square r * g (r)
> >>      max2r=. logn <.@- 2 ^. r          NB. indices into look-up table
> >>      tr   =. rgr2 by max2r { sum4sq    NB. rgr2 * sum 4^...
> >>      t    =. sum tr, t     NB. accumulate total
> >> end.
> >> t, m                     NB. return total and number of loops done
> >> )
> >>
> >>
> >> Thanks for any help,
> >>
> >>
> >> MIke
> >>
> >>
> >>
> >> --
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> >> https://www.avast.com/antivirus
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